LTTng Status Update christian.babeux@efficios.com @c_bab 1 Recent - - PowerPoint PPT Presentation

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Mar 12, 2023 420 likes •533 views

DORSAL Lab Meeting May 2013 LTTng Status Update christian.babeux@efficios.com @c_bab 1 Recent features 2.1 (Basse Messe) Network streaming over TCP, Introduce lttng-relayd, receive traces from remote consumers. Filtering

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LTTng Status Update

DORSAL Lab Meeting May 2013 christian.babeux@efficios.com  @c_bab 

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Recent features

 2.1 (Basse Messe)  Network streaming over TCP,

Introduce lttng-relayd, receive traces from

remote consumers.

 Filtering before data collection,

C-like syntax, bytecode interpreter.
UST only for the moment.

 Session daemon health monitoring API.

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Network streaming over TCP

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Filtering demo Filtering demo



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Recent features (cont.)

 2.2 (Cuda, Currently in RC)  Per-uid buffers in UST,  Context filtering,

'$ctx.procname == “demo*”',
'$ctx.vpid > 9000'.

 Trace file size limits,

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Global buffers & tracefile Global buffers & tracefile limits demo limits demo

  

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Future work Future work



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Future work

 Flight recorder mode tracing (2.3),  Trace data extracted on core dump (2.3),  Java tracing.

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Future work (cont.)

 Tracer triggers actions on specific events & filters  Compressed, encrypted streaming and storage,  LTTng accepted in Google Summer of Code.

– Dynamic instrumentation support in UST, – Android port.

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Questions ?

?

 lttng.org  lttng-dev@lists.lttng.org  @lttng_project  www.efficios.com